/* ============================================
   VIKASH PANDEY – HERBO GROUP
   Premium Corporate Stylesheet
   ============================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Playfair+Display:ital,wght@0,400;0,600;0,700;0,800;1,400&display=swap');

:root {
  --primary: #0a0e27;
  --primary-light: #141937;
  --primary-medium: #1a1f3a;
  --accent: #c9a84c;
  --accent-light: #e8c547;
  --accent-dark: #a08030;
  --white: #ffffff;
  --gray-100: #f4f4f6;
  --gray-200: #e2e2e8;
  --gray-300: #c0c0cc;
  --gray-400: #8a8a9a;
  --gray-500: #6b6b7b;
  --text-dark: #1a1a2e;
  --text-light: #d0d0e0;
  --glass: rgba(255,255,255,0.06);
  --glass-border: rgba(255,255,255,0.1);
  --shadow-lg: 0 25px 50px rgba(0,0,0,0.3);
  --shadow-gold: 0 4px 30px rgba(201,168,76,0.2);
  --radius: 16px;
  --radius-sm: 10px;
  --transition: .35s cubic-bezier(.4,0,.2,1);
  --font-body: 'Inter', sans-serif;
  --font-heading: 'Playfair Display', serif;
}

*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
  font-family: var(--font-body);
  background: var(--primary);
  color: var(--text-light);
  line-height: 1.7;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; transition: var(--transition); }
img { max-width: 100%; display: block; }
ul { list-style: none; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ---- SECTION COMMON ---- */
.section { padding: 100px 0; position: relative; }
.section-light { background: var(--gray-100); color: var(--text-dark); }
.section-dark { background: var(--primary); }
.section-alt { background: var(--primary-light); }

.section-header { text-align: center; margin-bottom: 60px; }
.section-header h2 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--accent);
  margin-bottom: 10px;
}
.section-light .section-header h2 { color: var(--primary); }
.section-header p { color: var(--gray-400); font-size: 1.05rem; max-width: 600px; margin: 0 auto; }
.section-light .section-header p { color: var(--gray-500); }
.section-header .line {
  width: 60px; height: 3px; background: var(--accent);
  margin: 16px auto 0; border-radius: 2px;
}

/* ---- NAVBAR ---- */
.navbar {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
  padding: 18px 0;
  transition: var(--transition);
  background: transparent;
}
.navbar.scrolled {
  background: rgba(10,14,39,0.95);
  backdrop-filter: blur(12px);
  padding: 12px 0;
  box-shadow: 0 2px 30px rgba(0,0,0,0.4);
}
.navbar .container { display: flex; align-items: center; justify-content: space-between; }
.nav-brand {
  font-family: var(--font-heading);
  font-size: 1.5rem; font-weight: 700;
  color: var(--accent);
  letter-spacing: 1px;
}
.nav-brand span { color: var(--white); }
.nav-links { display: flex; gap: 30px; align-items: center; }
.nav-links a {
  color: var(--white); font-size: .9rem; font-weight: 500;
  position: relative; padding: 4px 0; letter-spacing: .5px;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: -2px; left: 0;
  width: 0; height: 2px; background: var(--accent);
  transition: var(--transition);
}
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-links a:hover { color: var(--accent); }

/* Dropdown */
.dropdown { position: relative; }
.dropdown-toggle { cursor: pointer; display: flex; align-items: center; gap: 4px; }
.dropdown-toggle::after { content: '▾'; font-size: .7rem; }
.dropdown-menu {
  position: absolute; top: 100%; left: 0; min-width: 200px;
  background: var(--primary-medium); border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm); padding: 8px 0;
  opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: var(--transition);
  box-shadow: var(--shadow-lg);
}
.dropdown:hover .dropdown-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown-menu a { display: block; padding: 10px 20px; font-size: .85rem; }
.dropdown-menu a:hover { background: var(--glass); color: var(--accent); }

/* Hamburger */
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; z-index: 1001; }
.hamburger span { width: 25px; height: 2px; background: var(--white); transition: var(--transition); border-radius: 2px; }
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

/* ---- HERO ---- */
.hero {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden; text-align: center;
}
.hero-bg {
  position: absolute; inset: 0;
  background: url('images/hero-bg.png') center/cover no-repeat;
}
.hero-bg::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(10,14,39,.92) 0%, rgba(20,25,55,.8) 50%, rgba(10,14,39,.9) 100%);
}
.hero-particles {
  position: absolute; inset: 0; overflow: hidden;
}
.hero-particles span {
  position: absolute; width: 3px; height: 3px; background: var(--accent);
  border-radius: 50%; opacity: .3;
  animation: float-particle 6s infinite ease-in-out;
}
@keyframes float-particle {
  0%,100% { transform: translateY(0) scale(1); opacity: .3; }
  50% { transform: translateY(-80px) scale(1.5); opacity: .7; }
}
.hero-content { position: relative; z-index: 2; padding: 0 20px; }
.hero-subtitle {
  font-size: clamp(.85rem, 1.5vw, 1.1rem);
  letter-spacing: 6px; text-transform: uppercase;
  color: var(--accent); margin-bottom: 20px;
  font-weight: 600;
}
.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 6vw, 5rem);
  color: var(--white); line-height: 1.1;
  margin-bottom: 16px;
}
.hero-title span { color: var(--accent); display: block; }
.hero-tagline {
  font-family: var(--font-heading);
  font-size: clamp(1.2rem, 2.5vw, 1.8rem);
  color: var(--accent-light); font-style: italic;
  margin-bottom: 12px;
}
.hero-designation {
  font-size: 1.1rem; color: var(--gray-300);
  margin-bottom: 36px; letter-spacing: 1px;
}
.hero-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px; border-radius: 50px; font-weight: 600;
  font-size: .95rem; cursor: pointer; border: none;
  transition: var(--transition); letter-spacing: .5px;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: var(--primary);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-gold); }
.btn-outline {
  background: transparent; color: var(--white);
  border: 2px solid var(--accent);
}
.btn-outline:hover { background: var(--accent); color: var(--primary); transform: translateY(-2px); }

/* ---- ABOUT ---- */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-image { position: relative; }
.about-image img { border-radius: var(--radius); box-shadow: var(--shadow-lg); }
.about-image::before {
  content: ''; position: absolute; top: -15px; left: -15px;
  width: 100%; height: 100%; border: 2px solid var(--accent);
  border-radius: var(--radius); z-index: -1;
}
.about-text h3 { font-family: var(--font-heading); font-size: 1.6rem; color: var(--accent); margin-bottom: 20px; }
.about-text p { margin-bottom: 16px; color: var(--gray-300); }
.about-stats { display: flex; gap: 30px; margin-top: 30px; }
.stat-item { text-align: center; }
.stat-item .number { font-size: 2.2rem; font-weight: 800; color: var(--accent); line-height: 1; }
.stat-item .label { font-size: .8rem; color: var(--gray-400); margin-top: 4px; }

/* ---- MISSION & VISION ---- */
.mv-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.mv-card {
  background: var(--glass); border: 1px solid var(--glass-border);
  border-radius: var(--radius); padding: 40px; text-align: center;
  transition: var(--transition);
  backdrop-filter: blur(6px);
}
.mv-card:hover { transform: translateY(-6px); border-color: var(--accent); box-shadow: var(--shadow-gold); }
.mv-card .icon { font-size: 3rem; margin-bottom: 20px; }
.mv-card h3 { font-family: var(--font-heading); font-size: 1.5rem; color: var(--accent); margin-bottom: 14px; }
.mv-card p { color: var(--gray-300); }

/* ---- COMPANIES ---- */
.companies-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.company-card {
  background: var(--white); border-radius: var(--radius); padding: 30px;
  text-align: center; transition: var(--transition);
  box-shadow: 0 4px 20px rgba(0,0,0,.06);
  border: 1px solid transparent;
}
.company-card:hover { transform: translateY(-6px); border-color: var(--accent); box-shadow: 0 12px 40px rgba(201,168,76,.12); }
.company-card .card-icon {
  width: 60px; height: 60px; margin: 0 auto 18px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; color: var(--white);
}
.company-card h4 { font-size: 1rem; font-weight: 700; color: var(--primary); margin-bottom: 10px; line-height: 1.3; }
.company-card p { font-size: .88rem; color: var(--gray-500); line-height: 1.5; }

/* ---- AUTHOR ---- */
.author-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 60px; align-items: center; }
.book-image { position: relative; max-width: 350px; margin: 0 auto; }
.book-image img { border-radius: var(--radius); box-shadow: var(--shadow-lg); }
.book-badge {
  position: absolute; top: -10px; right: -10px;
  background: var(--accent); color: var(--primary);
  padding: 8px 16px; border-radius: 20px; font-size: .8rem; font-weight: 700;
}
.author-info h3 { font-family: var(--font-heading); font-size: 1.8rem; color: var(--accent); margin-bottom: 6px; }
.author-info .book-title { font-size: 1.2rem; color: var(--white); font-style: italic; margin-bottom: 20px; }
.author-info p { color: var(--gray-300); margin-bottom: 14px; }
.upcoming-books { margin-top: 30px; padding: 20px; background: var(--glass); border-radius: var(--radius-sm); border: 1px solid var(--glass-border); }
.upcoming-books h4 { color: var(--accent); margin-bottom: 10px; }
.upcoming-books p { color: var(--gray-400); font-size: .9rem; }

/* ---- GALLERY ---- */
.gallery-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.gallery-item {
  border-radius: var(--radius-sm); overflow: hidden; position: relative;
  cursor: pointer; aspect-ratio: 1;
}
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
.gallery-item:hover img { transform: scale(1.1); }
.gallery-item::after {
  content: '🔍'; position: absolute; inset: 0;
  background: rgba(10,14,39,.6); display: flex; align-items: center;
  justify-content: center; font-size: 1.5rem; opacity: 0; transition: var(--transition);
}
.gallery-item:hover::after { opacity: 1; }

/* Lightbox */
.lightbox {
  position: fixed; inset: 0; background: rgba(0,0,0,.95);
  z-index: 9999; display: none; align-items: center; justify-content: center;
}
.lightbox.active { display: flex; }
.lightbox img { max-width: 90%; max-height: 85vh; border-radius: var(--radius-sm); }
.lightbox-close {
  position: absolute; top: 20px; right: 30px;
  font-size: 2rem; color: var(--white); cursor: pointer;
  background: none; border: none;
}
.lightbox-nav {
  position: absolute; top: 50%; transform: translateY(-50%);
  font-size: 2rem; color: var(--white); cursor: pointer;
  background: var(--glass); border: none; padding: 10px 16px;
  border-radius: 50%;
}
.lightbox-prev { left: 20px; }
.lightbox-next { right: 20px; }

/* ---- CSR ---- */
.csr-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.csr-image img { border-radius: var(--radius); box-shadow: var(--shadow-lg); }
.csr-content h3 { font-family: var(--font-heading); font-size: 1.5rem; color: var(--primary); margin-bottom: 16px; }
.csr-content p { color: var(--gray-500); margin-bottom: 14px; }
.csr-list { margin-top: 20px; }
.csr-list li { padding: 8px 0; padding-left: 24px; position: relative; color: var(--gray-500); }
.csr-list li::before { content: '✦'; position: absolute; left: 0; color: var(--accent); }

/* ---- AWARDS ---- */
.awards-timeline { position: relative; max-width: 800px; margin: 0 auto; }
.awards-timeline::before {
  content: ''; position: absolute; left: 50%; top: 0; bottom: 0;
  width: 2px; background: var(--accent); transform: translateX(-50%);
}
.award-item {
  display: flex; align-items: center; margin-bottom: 40px;
  position: relative;
}
.award-item:nth-child(odd) { flex-direction: row-reverse; }
.award-dot {
  width: 16px; height: 16px; background: var(--accent);
  border-radius: 50%; position: absolute; left: 50%;
  transform: translateX(-50%); z-index: 2;
  border: 3px solid var(--primary);
}
.award-card {
  width: 44%; background: var(--glass); border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm); padding: 24px;
  transition: var(--transition);
}
.award-card:hover { border-color: var(--accent); transform: translateY(-4px); }
.award-card .year { color: var(--accent); font-weight: 700; font-size: .85rem; margin-bottom: 6px; }
.award-card h4 { color: var(--white); margin-bottom: 6px; font-size: 1rem; }
.award-card p { color: var(--gray-400); font-size: .88rem; }

/* ---- WHY CHOOSE ---- */
.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.why-card {
  background: var(--glass); border: 1px solid var(--glass-border);
  border-radius: var(--radius); padding: 36px; text-align: center;
  transition: var(--transition);
}
.why-card:hover { transform: translateY(-6px); border-color: var(--accent); }
.why-card .icon { font-size: 2.5rem; margin-bottom: 16px; }
.why-card h4 { color: var(--accent); margin-bottom: 10px; font-size: 1.05rem; }
.why-card p { color: var(--gray-400); font-size: .9rem; }

/* ---- CONTACT ---- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; }
.contact-form { background: var(--glass); border: 1px solid var(--glass-border); padding: 40px; border-radius: var(--radius); }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: .85rem; color: var(--gray-300); margin-bottom: 6px; font-weight: 500; }
.form-group input, .form-group textarea {
  width: 100%; padding: 14px 18px; background: rgba(255,255,255,0.05);
  border: 1px solid var(--glass-border); border-radius: var(--radius-sm);
  color: var(--white); font-family: var(--font-body); font-size: .95rem;
  transition: var(--transition);
}
.form-group input:focus, .form-group textarea:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(201,168,76,0.15);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.checkbox-group { display: flex; gap: 10px; align-items: flex-start; margin-bottom: 24px; }
.checkbox-group input[type="checkbox"] { margin-top: 4px; accent-color: var(--accent); width: 16px; height: 16px; }
.checkbox-group label { font-size: .82rem; color: var(--gray-400); cursor: pointer; }
.form-message { padding: 12px; border-radius: var(--radius-sm); margin-bottom: 16px; display: none; font-size: .9rem; }
.form-message.success { display: block; background: rgba(34,197,94,.15); color: #22c55e; border: 1px solid rgba(34,197,94,.3); }
.form-message.error { display: block; background: rgba(239,68,68,.15); color: #ef4444; border: 1px solid rgba(239,68,68,.3); }

.contact-info h3 { font-family: var(--font-heading); color: var(--accent); font-size: 1.5rem; margin-bottom: 24px; }
.contact-detail { display: flex; gap: 16px; align-items: flex-start; margin-bottom: 20px; }
.contact-detail .icon { width: 44px; height: 44px; background: var(--glass); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.2rem; flex-shrink: 0; border: 1px solid var(--glass-border); }
.contact-detail h4 { color: var(--white); font-size: .95rem; margin-bottom: 2px; }
.contact-detail p { color: var(--gray-400); font-size: .9rem; }
.map-container { margin-top: 30px; border-radius: var(--radius-sm); overflow: hidden; border: 1px solid var(--glass-border); }
.map-container iframe { width: 100%; height: 250px; border: none; filter: grayscale(.5) contrast(1.1); }

/* ---- FOOTER ---- */
.footer { background: #060920; padding: 60px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
.footer-brand { font-family: var(--font-heading); font-size: 1.3rem; color: var(--accent); margin-bottom: 14px; }
.footer-brand span { color: var(--white); }
.footer p.footer-desc { color: var(--gray-500); font-size: .88rem; margin-bottom: 20px; }
.footer h4 { color: var(--white); font-size: 1rem; margin-bottom: 16px; font-weight: 600; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: var(--gray-500); font-size: .88rem; }
.footer-links a:hover { color: var(--accent); padding-left: 4px; }
.social-links { display: flex; gap: 10px; }
.social-links a {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--glass); border: 1px solid var(--glass-border);
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; transition: var(--transition);
}
.social-links a:hover { background: var(--accent); color: var(--primary); border-color: var(--accent); }
.footer-bottom {
  margin-top: 40px; padding: 20px 0;
  border-top: 1px solid rgba(255,255,255,.06);
  text-align: center;
}
.footer-bottom p { color: var(--gray-500); font-size: .82rem; }

/* ---- BACK TO TOP ---- */
.back-to-top {
  position: fixed; bottom: 30px; right: 30px;
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--accent); color: var(--primary);
  border: none; font-size: 1.3rem; cursor: pointer;
  opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: var(--transition); z-index: 999;
  box-shadow: var(--shadow-gold);
}
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { transform: translateY(-3px); }

/* ---- ANIMATIONS ---- */
.reveal { opacity: 0; transform: translateY(40px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ---- POLICY PAGES ---- */
.policy-page { padding-top: 120px; padding-bottom: 80px; min-height: 100vh; }
.policy-page h1 { font-family: var(--font-heading); font-size: 2.5rem; color: var(--accent); margin-bottom: 30px; }
.policy-page h2 { font-size: 1.3rem; color: var(--white); margin: 30px 0 12px; font-weight: 600; }
.policy-page p, .policy-page li { color: var(--gray-300); margin-bottom: 12px; font-size: .95rem; }
.policy-page ul { padding-left: 20px; }
.policy-page ul li { list-style: disc; margin-bottom: 8px; }
.policy-page a { color: var(--accent); }
.policy-page a:hover { text-decoration: underline; }

/* ---- RESPONSIVE ---- */
@media (max-width: 1024px) {
  .companies-grid, .why-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .section { padding: 70px 0; }
  .hamburger { display: flex; }
  .nav-links {
    position: fixed; top: 0; right: -100%; width: 280px; height: 100vh;
    background: var(--primary); flex-direction: column;
    padding: 80px 30px 30px; gap: 20px;
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
  }
  .nav-links.active { right: 0; }
  .dropdown-menu { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; background: transparent; border: none; padding-left: 16px; }
  .about-grid, .author-grid, .csr-grid, .contact-grid, .mv-grid { grid-template-columns: 1fr; }
  .companies-grid, .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: 1fr; }
  .about-stats { justify-content: center; }
  .awards-timeline::before { left: 20px; }
  .award-item, .award-item:nth-child(odd) { flex-direction: row; padding-left: 50px; }
  .award-dot { left: 20px; }
  .award-card { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-buttons { flex-direction: column; align-items: center; }
}
@media (max-width: 480px) {
  .companies-grid, .gallery-grid { grid-template-columns: 1fr; }
  .about-stats { flex-direction: column; gap: 20px; }
}